ESTADISTICA

A-B: {1,2,3}
AnB: {4,5,6}
AuB: {1,2,3,4,5,6,.....}
A: {1,2,3,4,5,6}
B: { 4,5,6,........}
B-A: {..............}
B': { 1,2,3}
A': {7......}
U: R N
A' U B': {
A U B n A': {7........}
(A' U B') n A': {7......}
A U B n A': ( A'U B' ) n A